Depending on which generator you use, you will see different output. For instance: Different ways of generating models, services, level of quality, HTTP client, etc. I've compiled a list below with the results per area and how they compare against the openapi-typescript-codegen.

I've used the standard petshop examples from OpenAPI:

And used the following generators with their default options:

typescript-aurelia
typescript-angular
typescript-inversify
typescript-angular
typescript-fetch
typescript-jquery
typescript-node

#Results

	openapi-typscript-codegen	aurelia	inversify	angular	fetch	jquery	node
Supports OpenApi v2 specification	✅	✅	✅	✅	✅	✅	✅
Supports OpenApi v3 specification	✅	❌	❌	✅	✅	❌	❌
Supports authentication	✅ Bearer token	❌	✅ Bearer token	✅ Bearer token	✅ Bearer token	✅ Bearer token	✅ Bearer token
Strongly typed models	✅	✅	✅	✅	✅	✅	✅ Using classes instead of simple interfaces
Strongly typed enums	✅	✅ No enum is exported	✅	✅ Odd cast to `<any>`	✅ Odd cast to `<any>`	✅ Odd cast to `<any>`	✅ Odd cast to `<any>`
Models and services exported as individual files	✅	❌ All models inside one file	✅	✅	❌ All models and services inside one file	✅	❌ All models and services inside one file
Index file that exports all services and models	✅	✅	❌	✅	✅	✅	❌
Service returns typed result	✅	✅	✅	✅	❌	✅	✅
Service supports sending and receiving binary content	✅	✅	✅	❌ Passing file as `application/octet-stream`	❌ Passing file as `application/octet-stream`	✅	✅
Models and services contain inline documentation	✅	❌	❌	❌	❌	❌	❌
Framework agnostic	✅	❌ No, using `aurelia`	❌ No, using `inversify` and `rxjs`	❌ No, using `angular`	✅ But depends on `portable-fetch`	❌ No, using `jquery`	❌ No, can only be used with NodeJS `http`